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DiagnostData Academy

Adaptive cruise control

Adaptive cruise control: two versions and speed ranges, a radar with four transmitter-receiver units, stop-and-go, automatic braking below 30 km/h and operation — based on self-study program SSP 612.

DiagnostData AcademyRadars and cameras Adaptive cruise control
DiagnostData AcademyRadars and cameras Adaptive cruise control

Adaptive cruise control: which versions exist, how the radar sensor is designed, what the pre-crash protection system can do and how to operate it.

30-150 km/hACC with a manual gearbox
0-150 km/hACC with an automatic gearbox
up to 200 km/hdriver assistance package
4radar transmitter-receiver units
< 30 km/hautomatic braking when a collision threatens

Versions

first time in this class — extra-cost option, 2 versions

Adaptive cruise control is offered for the first time on a car of this class as an extra-cost option, in two versions. (first time in this class — extra-cost option, 2 versions)

ACC: manual 30–150 km/h · automatic 0–150 km/h

The first works with a manual gearbox from thirty to one hundred and fifty kilometers per hour, and with an automatic gearbox from zero to one hundred and fifty. (ACC: manual 30–150 km/h · automatic 0–150 km/h)

driver assistance package: up to 200 km/h + camera R242

The second is a driver assistance package: the range is extended to two hundred kilometers per hour, and the package includes a front camera. (driver assistance package: up to 200 km/h + camera R242)

Design

G259 + J428 · 4 transmitter-receiver units

Both versions have the same design: a radar sensor with four transmitter-receiver units, with the control unit in the same housing. (G259 + J428 · 4 transmitter-receiver units)

with automatic gearbox — stop-and-go function

With an automatic gearbox, the stop-and-go function is included. (with automatic gearbox — stop-and-go function)

Pre-crash protection

warning and automatic braking — now part of pre-crash protection

Warning and automatic braking, which used to be a separate brake assistant, are now part of the pre-crash protection system. (warning and automatic braking — now part of pre-crash protection)

new: automatic braking below 30 km/h

New for this model: if a collision is imminent at speeds below thirty kilometers per hour, the car brakes by itself. (new: automatic braking below 30 km/h)

collision risk is assessed by the J428 software

The collision risk is detected from the cruise control data, which a program in its control unit analyzes. (collision risk is assessed by the J428 software)

Controls and service

operation — steering column stalk

As before, the system is operated with the steering column stalk. (operation — steering column stalk)

via the menu: switch off the warning or the entire protection

The warning or the entire pre-crash protection system can be switched off in the infotainment system menu. (via the menu: switch off the warning or the entire protection)

service and diagnostics — as for this system on other models

Service and diagnostics are the same as for this system on other models.

Summary

  • Adaptive cruise control is offered for the first time on a car of this class as an extra-cost option, in two versions.
  • The second is a driver assistance package: the range is extended to two hundred kilometers per hour, and the package includes a front camera.
  • Both versions have the same design: a radar sensor with four transmitter-receiver units, with the control unit in the same housing.
  • New for this model: if a collision is imminent at speeds below thirty kilometers per hour, the car brakes by itself.
  • As before, the system is operated with the steering column stalk.

Next episode: wheels, tires and tire pressure monitoring.

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